Respuesta :

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Answer:

[tex] {(5xy)}^{ - 4} = \frac{1}{ {(5xy)}^{4} } = \frac{1}{ {(5 \times 3 \times 2)}^{4} } \\ \\ \\ \frac{1}{ {(30)}^{4} } = \frac{1}{810000} = 1.23 \times {10}^{ - 6} [/tex]

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